I just checked 'About this Mac' and the model number is ST9500420ASG, run a search on google and I found it's the Seagate Momentus
Yes, it IS just that simple.
... you can't watch Blurays on it without an external Bluray drive and a little software finagling because Apple considers the Bluray licensing terms too onerous and the.... blah blah blah
I remember installing software for the first time on a macbook. I kept thinking "I must be missing something, this is too simple." Eventually I realized it was that simple. And I can get right to work on whatever. No tinkering; it just works. That's why I am still a customer.